by milosmns

Android: A horizontal number picker

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Actual Number Picker

Android Weekly Android Arsenal

What is this?

Actual Number Picker is an Android custom-built View for choosing numbers. It's simple, elegant, fits in a small-height constraint box and it can be completely customized in XML. You can easily swipe it right and left, or click on arrow controls to increase/decrease the current value.


  • Android 3.0 or later (Minimum SDK level 11)
  • Android Studio (to compile and use)
  • Eclipse is not supported

Getting Started

  1. Download Android Studio
  2. Launch Android Studio
  3. Start your new project
  4. Open your project's main Gradle file, in root directory (/build.gradle)
  5. Make sure you are using jcenter() in the repository block (mavenCentral() should work too)
  6. Open your app module Gradle file, for example /app/build.gradle
  7. In dependencies block, add the following line:
    compile 'me.angrybyte.picker:picker:1.3.1'
  8. Click Tools/Android/Sync Project with Gradle Files or click on the Sync icon in the top toolbar
  9. Click Run/Run 'app' to see if it's resolved correctly

This will run the app on your device. You may need to download a newer version of Gradle, which will be available in the Android Studio UI if compile fails.

What does it look like?

scene_shot_2 A Lollipop-inspired look

screenshot_4 Various configuration options (v1)

screenshot_5 Various configuration options (v2)

Sample usage

First, define the View in your layout file (of course, you don't need to add all the

attributes, I just added them for demo).

Then, from Java (your Activity or Fragment), you can easily get the view and attach the listener. ```java public class DemoActivity extends AppCompatActivity implements OnValueChangeListener {

private static final String TAG = DemoActivity.class.getSimpleName();

private ActualNumberPicker mPicker;

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_demo); mPicker = (ActualNumberPicker) findViewById(; mPicker.setListener(this); }

@Override public void onValueChanged(int oldValue, int newValue) { float percent = (float) newValue / (float) (mPicker.getMaxValue() - mPicker.getMinValue()); Log.d(TAG, "Currently the picker is at " + percent + " percent."); }

} ``

onValueChanged()` event will always get fired on the UI thread.

Explanation of attributes

Here are some short explanations for the attributes provided by the view. You can leave out any of them, values will get set to default ones.

  • show_bars
    : (boolean) Whether show the vertical lines or not.
  • bars_count
    : (integer) How many bars to show. Note that the number may be changed by 1 if symmetry issues occur (ignored if bars are not visible).
  • bar_color
    : (color) Recolors all of the vertical lines to the specified color (ignored if bars are not visible).
  • bar_width
    : (dimension) How wide should each bar be (ignored if bars are not visible).
  • draw_over_text
    : (boolean) Whether to show the bars over the text (ignored if text or bars are not visible).
  • draw_over_controls
    : (boolean) Whether to show the bars over the arrow controls (ignored if controls or bars are not visible).
  • selection_color
    : (color) The touch highlight color on each of the arrow controls (ignored if controls are not visible).
  • show_highlight
    : (boolean) Whether to show the blurry highlight behind each of the arrow controls (ignored if controls are not visible).
  • highlight_color
    : (color) Recolors the blurry highlight to the specified color (ignored if controls or highlights are not visible).
  • show_controls
    : (boolean) Whether to show the slow arrow controls or not.
  • controls_color
    : (color) Recolors all of the slow arrows to the specified color (ignored if slow arrows are not visible).
  • show_fast_controls
    : (boolean) Whether to show the fast arrow controls or not.
  • fast_controls_color
    : (color) Recolors all of the fast arrows to the specified color (ignored if fast arrows are not visible).
  • show_text
    : (boolean) Whether to show the text with the current number value or not.
  • text_size
    : (dimension) Set the current number value text size (ignored if text is not shown).
  • text_color
    : (color) Recolors the current number value text to the specified color (ignored if text is not shown).
  • min_value
    : (integer) How low can the value numbers go.
  • max_value
    : (integer) How high can the value numbers go.
  • value
    : (integer) Set the current value (must be between


If you've found an error while using the library, please file an issue. All patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Some more help can be found here: - Stack Overflow - On my blog

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